<template>
  <div class="icons">
      <swiper :options="swiperOptions" v-if="showSwiper">
          <swiper-slide v-for="(page,index) of pages" :key='index'>
      <div class="icon"  v-for="item of page" :key=item.id>
        <div class="icon-img">
        <img class='icon-img-content' :src="item.imgUrl">
        </div>
        <p class="icon-desc">{{item.desc}}</p>
      </div>
       </swiper-slide>
       </swiper>
  </div>

</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOptions: {
        loop: true,
        autoplay: false// 取消自动滚动
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    },
    showSwiper () {
      return this.list.length
    }

  }

}
</script>

<style>
  .swiper-container {
      width: 100%;
      height: 0;
      padding-bottom: 50%;
  }
  .icons {
    margin-top: .1rem;
    width: 100%;
    overflow: hidden;
    height: 0;
    padding-bottom: 50%;
    /* background: green; */
  }
  .icon {
    position: relative;
    overflow: hidden;
    float: left;
    width: 25%;
    height: 0;
    padding-bottom: 25%;
    /* background: red; */
  }
  .icon-img {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: .44rem;
      box-sizing: border-box;
      padding: .1rem;
      /* background: blue; */
  }
  .icon-img-content {
      display: block;
      margin: 0 auto;
      height: 100%;
  }
  .icon-desc {
      text-align: center;
       position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      line-height: .44rem;
      height: .44rem;
      color: #333;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
  }
</style>
